1. S

    VM showing 10Gbit NIC speed instead of 40Gbit

    Hello all, I recently bought a Mellanox ConnectX-4 EN MCX415A-BCAT NIC card, and installed it into my Proxmox machine. I can see it among the network devices, I can query it`s speed and it displays the expected value, which is 40Gbits. So everything looks, and works as I expect, but then I...
  2. O

    Intel 350 NIC No Longer Supported?

    I was unable to see any of the 4 ethernet ports I have (eno1-4) using `ip link show` after upgrading to Proxmox 8. When choosing to boot from the earlier kernel, it immediately shows up. Is my NIC no longer supported? Included in this category because it is a kernel-level issue. Thank y'all...
  3. A

    Corosync Best Practice

    I'm trying to figure out the best way to ensure corosync has its own network. Please let me know if any of these points weren't ideal and why: I created a VLAN with no gateway (just a space on my switch with a unique subnet) 10.5.0.X and set all 8x of my nodes to addresses on that subnet. I...
  4. S

    Two NICs two subnets

    Hello Everyone, I'm sweating my bal*s off right now, i've been searching for a definitive and working answer for days but nothing seems to work. To start i use the onboard motherboard NIC as the main one, which is on LAN, which is also working fine as intended. As a second NIC i...
  5. G

    Detected Hardware Unit Hang

    Hello, After a fresh install, Proxmox is loosing his connectivity and showing this on console: If hit the return key it ask me to login so the host is not frozen. The NIC is an Intel one. The issue wasn't happening before in previous versions of Proxmox VE. Thanks, Guillaume
  6. L

    Problem to activate a 10G NIC

    Hi guys! I need some help with a 10G NIC. A client was running a new server and the 10G appears on the web interface, but in the console not. How can i try to "install" this NIC in this server?
  7. Z

    Cluster regularly losing qourum

    I have an 12 node homelab that is regularly losing quorum. I think it might be due to a combination of high bandwidth activities (e.g. backups to a separate PBS server) and corosync being latency sensitive. The 12 nodes are almost all 1L PCs (e.g. Dell and Lenovo tiny/micro form factors). I...
  8. T

    Unable to forward Onboard NIC to OPNSense

    Hello there! I just started using Proxmox VE 7.4 (6.2) as of last week with a Lenovo ThinkCentre M900 Tiny I got off Amazon Renewed, mainly for the purpose of running it as an OPNSense router and as a host for Home Assistant OS, plus a few Docker containers. So far, I've been able to install...
  9. P

    Two IPs for node, port 8006 is working only to one.

    Hello, Please help understand the correct setup. Current config: PCI shelf with one installed G25A - EMBEDDED SINGLE BOARD COMPUTER. Two IPs are defined: for eno1 I/F for enp4s0f1 I/F #ip a (only relevant): 3: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc...
  10. F

    Proxmox Kernel 6.2 Issue with Intel NIC I225-v3/LM

    Hi Guys Been trying to pass the 12th generation iGPU on my LXC container for some time now. The problem is, according to this thread It requires the kernel version 6.2. But...
  11. P

    ETH ports on SBC PCI card

    Hello, gurus!!! Please help me to understand if my required configuration is feasible. Current config: PCI shelf with one installed G25A - EMBEDDED SINGLE BOARD COMPUTER. According to G25A docs - there are 3 ETH ports on the front, indeed the LAN cable is connected to the upper ports and it's...
  12. T

    No longer able to view network interfaces - can't create bridge

    When trying to create a Linux Bridge I noticed that I am no longer able to view the interface names for my quad NIC. They used to be labeled enp4s0f0, enp4s0f1, enp5s0f0, and enp5s0f1 but no longer show up with ip a, ip link show, etc. I also receive an error stating that the bridge port does...
  13. F

    If VT-d not supported, so how do you know the wire is not connected?

    intel J1900 VT-x: enabled VT-d: unsupported virtual machine always see the connected network wire. The problem occurs when the lease or address changes DHCP.client. The virtual machine connects to the ISP and there are problems with the network connector, virtual machine may not be available...
  14. O

    Passthrough NICs to pfSense VM

    Hello, Sorry to ask a daft question... I'm trying to set up pfSense for managing some devices (mainly scientific equipment) connected to a LAN but also requires access to the internet for initial set-up and updates etc. I'm using an old Supermicro server that has two NICs. One is attached...
  15. B

    [SOLVED] Proxmox with HBA installed doesnt list Internal Nic in "ip a"

    So i have scoured the web for hours looking for my problem and i find things that are close but not clearly the same. Im seasoned in linux but its still a bit foreign to me so please forgive me. Anyway, as the title states, When I install my HBA (LSI 9210-8i with FW P20 IT), I lose integrated...
  16. E

    Guidance for configuring NICs on Proxmox host, pass through WAN from modem to WiFi router with host as middleman.

    I am green as grass after a nice spring rain. I'd like to learn more about networking, and as the title suggests I'd like to create a system that ultimately has the WAN from my modem go through the Proxmox host (NIC 1) and out (NIC 2) to my WiFi router. I just need help being pointed in the...
  17. 1

    Incompatible card?

    Hello! I upgraded the kernel to 6.1. After installing a PTR-FU network card (RTL8125B) my main network card stops linking once the kernal boots and it is not reachable by the network, however it has the same IP as before. Any idea what it could be? Do you know if PTR-FU (RTL8125B) is compatible...
  18. 1

    Recommended NICS to use in proxmox

    Good morning, I am looking for a network card to install to my proxmox server. After investigating, the realtek NICs give a lot of problems to install in proxmox, so I don't know what network cards I could install in my server. I currently have an AMD Ryzen 5 5600G processor, running...
  19. A

    [SOLVED] Cannot Passthrough NIC in Proxmox to OPNsense VM

    Hi all, As the title states, I have a 2nd NIC on my HP ProLiant DL360p Gen8 server (The first NIC is a quad 1Gbps NIC). Upon getting my hands on the NIC, I installed Proxmox 7.1-7 and ran the following script I wrote: #!/bin/bash # Configure apt sources and install necessary packages...
  20. M

    After migrating to another node there's no internet connection

    Hi everyone, i've been facing a rather bizzare issue on PVE6.4-15 I have a small 2-node cluster and everytime i migrate a VM to the other node, it doesn't have network connectivity anymore. In order to solve the issue i have to remove the NICs and re-add them. Afterwards i have to modify...


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